Alternator question

[Bruce73RR]

I searched as best as I could and didn't find this subject.

I bought a replacement alternator for my 1973 Road Runner 340. The new alternator had a sticker on it that warned me to replace the voltage regulator when installing the alternator. No explanation. I haven't changed the regulator yet and the car is running fine and delivering 13.8 volts to the battery.

Any idea why I should replace the regulator too?

 

[pnora]

I searched as best as I could and didn't find this subject.

I bought a replacement alternator for my 1973 Road Runner 340. The new alternator had a sticker on it that warned me to replace the voltage regulator when installing the alternator. No explanation. I haven't changed the regulator yet and the car is running fine and delivering 13.8 volts to the battery.

Any idea why I should replace the regulator too?

They must want to sell more parts.

 

[tonysrt]

Sometimes people trouble shoot the wrong part being the problem. So if you replace both probably a fix. You just don't know what was bad.

 

[R413]

Keep driving it’s fine.

 

[volaredon]

Yup. And I'd trust any electrical parts from back in the day vs anything new. I buy a few at a time off eBay when I find new but old parts for parts like regulators, ignition boxes,even caps n rotors....

 

[tonysrt]

Another thing to remember is that in cold weather output is higher from the alternator and is normal.